Tobacco-pipe.



w. C='BANKER.- I

TOBABCD PIPE,

APPLICATlOf-l FILED JAN. 12. 19H

I Patented Sept. 3,1918.

- the stem, I emp WILLIAM C. Barman, or enroae'o, rm rn'ors.

'ronaoco-rrrn.

tarmac.

Specification of Letters Patent.

Patented Sept. is, rare.

Application filed January 12, 1917. Serial No. 142,038.

To all whom it may concern:

Be it known that I, WILLIAM G. BAIIKER,

a citizen of the United States, residing at of which are two ducts, the upper for the passage of smoke, and thelower for the draining of saliva. This is the preferred construction with which my invention may be used. In attaching the mouth piece to loy a screw threaded connection of special construction, as will be resently pointed out. My improved pipe is easily and cheaply. made, is convenient and durable, and above all provides a connection between the mouth piece and stem which is secure and tight without affecting the appearance of the .pipe. At the same time .it insures a registration of the endsof the two ducts such as to maintain clear pas- ,sages from the bowl to the mouth-piece.

These various objects as wellas others to be hereafter noted are attained by my invention which is illustrated in detail upon the accompanyin drawing, showing:

In Figurevl, a ongitudinal sectional view through a straight p1pe;

In Fig. 2, a similar view of a curved pipe, the end of the connecting stud being pointed and engaged with a plug;

In Fig. 3, a detail of the adjoining ends of the mouth piece and stem, the parts being separated; and

n Fig. 4, a cross section through the pipe stem on line of Fig. 1.

The present pipe comprises the usual bowl 6, stem 7, and mouth piece 8. Extending through the stem and mouth piece are two passages 9and 10, one preferably above the other, the upper passage 9 opening into: The lower passage 10 which,

the bowl 6. communicates with the passage 9 only at the end 11 of the mouth piece terminates at a point 12 in the bowl bottom. A plug 13 secured in place by any appropriate meansfriction. threading, or otherwise-servesto normally close this end of the passage 10.

to. enter a cavity of similar shape,

In pipes of this character it is well recog-' nized that smoke is drawn through the passage communicating with the bowl,- while the other passage receives the saliva which from time to time can be cleaned out through the-opening 12. g

It is highly desirable that the mouth piece of a pipe should be removable from the stem, and that whenreplaced in position it should efiect a tight connection therewith. In the present pipe, I use a threaded 'connection rather thanone which de ends upon friction; The threaded stud ordinarily em- 1 loyed for this purpose is not available with pipes of the character described (unless both the stem and mouth piece be of excessive diameter) for the reason that the two ducts cannot easilybe made to pass through the, body of the stud. The particular form of connection devised to meet the conditions noted is as follows:.

A threaded stud 14: is secured centrally into the mouth piece and preferably cemented in place. This studis of diameter practically equal tothe distance between the centers of the two passages 9 and 10. In order that the stud may not obstruct these passa es slots 15 are arranged longitudinally o the stud through its length and located at p'oints'which-will register with the passages 9 and 10 in the mouth piece. As it is usual to form these passages by boring, in consequence of which the passages are round in cross section, I prefer to form the slots 15 semi-circular in shape as best indicated in Fig. '4. When the stud 14 y is properly secured in place within the mouth piece, the walls slots will al ine so as to present no obstruction whatever. Within the proximate end of thestem is a socket 16 threadedto receive the end of the studwhich projects from the m0uth,piece. In the construction shown in Fig. 2 the projecting end of the stud is cone-shaped as at 17 and" is shaped formed in a plug 18, of cork Or other suitable material, positioned within the far 'end of the socket 16. When the mouth piece is attached to the stem in the intended manner, the threads of the stud engaging within the socket will draw the parts together with a tight fit. This ultimate position of the mouth iece relative to the stem should, of course, e such that the slots 15 of the stud of thepa'ssages and will aline with the passages 9 and 10 in the stem, so that the continuity of these ducts from end to end may be preserved, and for this purpose the stud 'should be adjusted properly lengthwise of the mouth piece to bring the'meeting ends of the mouth piece and stem into firm contact'when the passages formed in these parts are exactly in alinement. Where the cork plug 18 is used, the cone end of the stud should likewise engage therewith, when the passages 9 and 10 aline in the mouth piece and stem, although a slight deviation is ermissible due to the resilient or compressi le character of the plug which enables the stud to remain in engagement therewith at varying positions longis tudinally of the stem,

In the present pipe, it will be seen that I have provided a tight connection between the stem and mouth piece which can be simply made. The importance of rhaving the connection tight "is increased greatlyin pipes of the kind shown, for the reason that leaks in'both the smoke and saliva assages to the pipe exterior, as Well as leaks etween the passages interiorly of the pipe, should piece, a threaded stud fixedly secured to one endof the mouthpiece, and a stem arranged for threaded engagement with the stud whereby a connection is established between the stem and mouth piece,- there being in the stem and mouth piecetwo' passages whose proximate ends are adapted to alinewhen the stemand mouth piece are in proper relative rotative position, and the stud bein of such size as to partially obstruct each 0 said passages but being formed with slots disposed longitudinally thereof in alinement with the passages in the mouth piece where by said passages remain continuous through the stud, the threaded gonnection between the stud and stem being such as to insure these parts lying in proper relative rotative position to preserve the continuity of the passages through the stud and stem as well, substantially as described. A

WILLIAM C. BANKER. 

